Nirukta, Phonetic Variants, and Vedic Dhātu–Svara Taxonomy
अष्टादश राप्रभृतयः परस्मैपदिनः स्मृताः । इङ्ङात्मनेपदी प्रोक्तो धातुर्नारद केवलः ॥ ४१ ॥
aṣṭādaśa rāprabhṛtayaḥ parasmaipadinaḥ smṛtāḥ | iṅṅātmanepadī prokto dhāturnārada kevalaḥ || 41 ||
‘रा’ आदि से आरम्भ होने वाली अठारह धातुएँ परस्मैपदी स्मरण की गई हैं। और हे नारद, ‘इङ्’ धातु को केवल आत्मनेपदी कहा गया है।
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It shows that disciplined Vedic knowledge—especially Vyākaraṇa (grammar)—is treated as a supporting limb of dharma and mokṣa, because precise language preserves correct understanding of śāstra.
Indirectly: by emphasizing correct grammatical tradition, it safeguards accurate recitation and comprehension of sacred texts that nourish bhakti, even though the verse itself is technical.
Vyākaraṇa: the rule-based classification of dhātus into parasmaipada and ātmanepada usage, including an example of a root taught as exclusively ātmanepada.